POND SUCCESSION - George West ISD

[Pages:9]Mrs. Keadle JH Science

Name__________________________________ period _____ date assigned_____________ date due ______________ date returned _____________

Succession Activity

Directions: Carefully cut out the cards for each example of succession. Only cut out the six to eight cards for each type at one time. Match the picture to the description and place them in the correct order from beginning to climax community. Glue them down here. Place the picture on the top row and the descriptions underneath.

POND SUCCESSION

1

2

3

4

GRASSLAND SUCCESSION

1

2

3

4

1 Succession Activity

Mrs. Keadle JH Science

FOREST SUCCESSION

1

2

3

4

DESERT SUCCESSION

1

2

3

4

33. Label each type of succession as primary or secondary pond ______________________________ forest ___________________________________ desert_____________________________ grassland_________________________________

2 Succession Activity

34 Which of these types of environments experiences the LEAST change in the total number and type of species over time?

A an ecosystem with only pioneer species

B an ecosystem that is in primary succession

C an ecosystem that is in secondary succession

D an ecosystem with a climax community

Mrs. Keadle JH Science

35 Which plant characteristics are common to pioneer species?

F plants with roots that act as wedges to slowly break apart rocks

G plants with long, thick roots that tap into deep water supplies

H trees with exposed surface roots that trap soil and vegetation

J plants with a broad mat of surface roots that quickly soaks up water

36 A hurricane hits a coastal prairie and destroys the habitat. Years later there is an appearance of small plants with rapidly spreading roots on newly formed coastal sand dunes. This vegetation describes--

A a microhabitat

B primary succession

C secondary succession

D biodiversity

37 What is the relationship between ecological succession and equilibrium in an ecosystem?

F Ecological succession helps maintain equilibrium in an ecosystem.

G Ecological succession prevents ecosystems from ever reaching equilibrium.

H There is no relationship between ecological succession and equilibrium.

J Ecological succession and equilibrium are the same thing.

3 Succession Activity

Mrs. Keadle JH Science 38

The diagrams above show an ecosystem during different stages of ecological succession. In which order will these stages occur, from earliest to latest? A 4, 2, 1, 3 B 1, 2, 3, 4 C 3, 1, 4, 2 D 2, 4, 3, 1

4 Succession Activity

Mrs. Keadle JH Science 39

The figure above shows the same ecosystem in Texas at two different times. Which of the following MOST likely caused the change of species shown in the figure? F development of a parking lot G passing through of a glacier H preservation of habitat J occurrence of a forest fire

40 Lava from an underwater volcano piles up over many years. Eventually, the pile of lava sticks up above the ocean surface, forming a new island. To show that succession is occurring on the island, it would be MOST helpful for a scientist to measure changes in -- A average temperature B day length C annual precipitation D soil depth

5 Succession Activity

Mrs. Keadle JH Science 41 A non-native plant is introduced into a diverse, mature ecosystem in equilibrium.

Assuming that the non-native plant has no natural enemies and that it thrives in the ecosystem, how will it affect the community? F The native species will become more like the new plant. G The number of native species will decrease. H The number of native species will not be affected at all. J The native species will become extinct

42 A non-native plant is introduced into a diverse, mature ecosystem in equilibrium. Assuming that the non-native plant has no natural enemies and that it thrives in the ecosystem, how will it affect the community? A The native species will become more like the new plant. B The number of native species will decrease. C The number of native species will not be affected at all. D The native species will become extinct

6 Succession Activity

Mrs. Keadle JH Science

cut all dotted lines, you will have 8 separate "cards". Put them in order before you cut out the next set.

Grasses and other small land plants begin to grow on dry edges; more soil; small land animals, such as mice, rabbits, etc... move into the area.

Greater variety of plants; larger sized plants growing; layer of sediments thicker due to build up of dead organisms and soil washed into the pond.

Young pond; few plants; small size; a variety of small organisms present; bottom of pond has little sediment (soil is the black layer).

Pond completely filled in; bushes shade out the grass; trees overgrow the bushes; larger land animals present such as deer, squirrels, etc...

lichens

bare

rock

cut all dotted lines, you will have 8 separate "cards". Put them in order before you cut out the next set.

As lichens create cracks in the rock, mosses and weeds begin to grow helping to create more soil.

Once soil is formed, weeds, grasses and small shrubs can take root. Small animals will begin to come into the area as well.

The glacier scrapes the earth as it moves by. After it melts, it leaves bare rock behind.

After about a year, lichens begin to grow on the rocks. The lichens begin to chemically break the rock down into soil.

7 Succession Activity

Mrs. Keadle JH Science

8 Succession Activity

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download